# -*- makefile -*-

# Converter rule
IN := ppm
OUT := png

%.$(OUT): %.$(IN)
	pnmtopng <"$<" >"$@"

# Generic converter rules for pipe conveters.
.DELETE_ON_ERROR:

INS := $(shell ls *.$(IN))
OUTS := $(patsubst %.$(IN),%.$(OUT),$(INS))

.PHONY: all debug
all: $(OUTS)
debug:
	@echo INS $(INS)
	@echo OUTS $(OUTS)